2022英语周报九年级下册外研版答案

15【解析】(1)金属棒P1在区域ABCD的磁场中运动时产生的电动势为E=BLv(1分)代入数据解得E=0.6V(1分)回路中的感应电流为I=E(1分)解得I=1A(1分)由辛衡条件得F1=2 mosin+BIL(1分)F1=1.3N(1分)(2)当金属棒P1、P2均在磁场中运动时,拉力F的功率最大,拉力为F2=2 nisin升+4BI(1分)解得F2=2.2N(1分)拉力F的最大功率为P=F2v分)解得P=4.4W(1分)

Paragraph 1:Thinking of this, I told him,"Sir, you please have your tea, I am not in a hurry. " This gentleman, whohad worked in the bank for so many years, suddenly Iooked up at me and for the first time we had eye contact-he had never made eye contact earlier. I saw a different person there. He gave me a rare smile and saidIt is an everyday affair with me, you are not in a hurry but somebody else will come who will be in a hurry【表面上像机器人的同事也有自己的思绪】Paragraph 2What he said really touched my heart. I felt that all this time I thought of him as a robot, someone who wasthere for my convenience, but today I suddenly felt astrange bond with him.【高分句型-】| promised tobe more friendly with people who help me with my work and be thankful that they are there for me.【高分句型二】. our life, we need to put ourselves in otherpeople's shoes to imagine their thoughts. In this way, we can understand others better.【作者对同事的话有所咸悟】

以上就是2022英语周报九年级下册外研版答案，更多英语周报答案请关注本网站。